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7<title>MPSetIndicationConfig</title>
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11<h1>MPSetIndicationConfig</h1>
12
13<h2>Syntax</h2>
14<p>
15<dl>
16  <dd><pre><code>#include &lt;revolution/mp.h&gt;</code></pre>
17  </dd>
18  <dd><pre><code>typedef void (*MPIndicationCallback)( s32 type, MPIndicationInfo *info );</code></pre></dd>
19  <dd><pre><code>static inline void MPSetIndicationConfig ( <a href="./MPConfig.html">MPConfig</a>* <i><b>config</b></i>, MPIndicationCallback <i><b>callback</b></i> );</code></pre>
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24<h2>Arguments</h2>
25<p>
26<table border="1">
27  <tr>
28<td valign="top" width="120" bgcolor="#ffffe8"><code><strong><em>config</em></strong></code></td>
29<td width="520">MP communications settings</td>
30  </tr>
31  <tr>
32<td valign="top" width="120" bgcolor="#ffffe8"><code><strong><em>callback</em></strong></code></td>
33<td width="520">Callback for indication notification</td>
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35</table>
36</p>
37
38<h2>Return Values</h2>
39
40<P>None.</P>
41
42<h2>Description</h2>
43
44<p>
45Sets the indication notification callback for <code>MPConfig</code>. This inline function assigns values to particular member variables in <code>MPConfig</code>.<br>Settings made with this function must be made before calling <code>MPStartup</code> function.
46</p>
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48<p>
49The following items are defined as notifications of indication.
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51<TABLE border="1">
52  <TBODY>
53      <tr>
54<th><strong>type</strong></th>
55<th><strong>Description</strong></th>
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57    <TR>
58<td valign="top" width="120" bgcolor="#ffffe8"><strong><code>MP_INDICATION_CB_TYPE_FATAL_ERROR</code></strong></td>
59<TD width="520">A fatal error occurred.</TD>
60    </TR>
61    <TR>
62<td valign="top" bgcolor="#ffffe8"><strong><code>MP_INDICATION_CB_TYPE_PSEUDO_VBLANK</code></strong></td>
63<TD>A pseudo V-Blank synchronization cycle of approximately 60 Hz, automatically performed by connected child devices. This is controlled by a cycle unrelated to the Wii console's V-Blank cycle. To receive this notification, <code>MP_MODE_ENABLE_PSEUDO_VBLANK_INDICATION</code> must be specified for <A href="./MPConfig.html"><code>MPConfig</code></A>'s member variable, <code><STRONG><EM>mode</EM></STRONG></code>.</TD>
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67<p>
68Detection of fatal errors and acquisition of error types can be managed by calling the <code>MPGetFatalError</code> function when the MP function has returned <code>MP_RESULT_FATAL_ERROR</code>. For this reason, it is not always necessary to set a callback for indication notification.
69</p>
70<p>
71Using the <code>MP_INDICATION_CB_TYPE_PSEUDO_VBLANK</code> notification makes it possible to configure the send data immediately before MP communications for each frame in frame-synchronized communication mode. This allows for low-latency communications.
72</p>
73
74<h2>See Also</h2>
75<p>
76<code><a href="./MPStartup.html">MPStartup()</a></code>, <code><a href="./MPSetPortConfig.html">MPSetPortConfig()</a></code>, <code><a href="./MPConfig.html">MPConfig</a></code>
77</p>
78
79<h2>Revision History</h2>
80
81<p>
822008/06/03 Added the pseudo V-Blank notification.<br>2006/09/04 Added descriptions.<br>2006/06/29 Initial version.
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